Heating Scrap in the Converter

Option

Sequence of operations

One-stage

1. scrap charging + heating + casting of hot iron;

2. scrap charging + heating + scrap charging + hot metal charging.

Two-stage

1.scrap charging + heating + hot metal charging;

2. scrap charging + heating + scrap charging + heating +scrap charging + hot metal charging.

Three-stage, etc.

scrap charging + heating + scrap charging + heating + scrap charging + heating +scrap charging +hot metal charging.

Type of Heating

Duration of heating (min)

Application

Light

3 – 4

-To prevent explosions and claps

- With standard scrap loading

Traditional

6 – 9

-To prevent explosions and claps

-To increase share of scrap

- With standard scrap loading

Extended

over 9

-Additional increase of share of scrap

-To provide production during shortage of hot metal.